NVIDIA's upcoming GM107 GPU, the first to be based on its next-generation "Maxwell" GPU architecture, reportedly features a different arrangement of CUDA cores and streaming multiprocessors to those typically associated with "Kepler," although the component hierarchy is similar. The chip reportedly features five streaming multiprocessors, highly integrated computation subunits of the GPU. NVIDIA is referring to these parts as "streaming multiprocessor (Maxwell)," or SMMs.

Further, each streaming multiprocessor features 128 CUDA cores, and not the 192 CUDA cores found in SMX units of "Kepler" GPUs. If true, GM107 features 640 CUDA cores, all of which will be enabled on the GeForce GTX 750 Ti. If NVIDIA is carving out the GTX 750 by disabling one of those streaming multiprocessors, its CUDA core count works out to be 512. NVIDIA will apparently build two GPUs on the existing 28 nm process, the GM107, and the smaller GM108; and three higher performing chips on the next-generation 20 nm process, the GM206, the GM204, and the GM200. The three, as you might have figured out, succeed the GK106, GK104, and GK110, respectively.

Well...they are less but judging from the preliminary results, more powerful than the old SMs, so in the long run it should equal out? I guess that's how NV got those better power numbers - increased complexity but reduced the overall number of SMs.

by: HalfAHertzWell...they are less but judging from the preliminary results, more powerful than the old SMs, so in the long run it should equal out? I guess that's how NV got those better power numbers - increased complexity but reduced the overall number of SMs.

Probably more high level tuning than retooling the individual SP.
Balancing the components for efficiency gains, eliminating bottlenecks.

But seriously, it's a GX107 part, of course it's not going to set the world alight on pure performance alone, but it's how it reaches that performance that will be interesting, especially how it compares to Kepler on the same process will be rather telling.

I wouldn't judge their future big chip (GM200) based on small one (GM107).
Couple of things are interesting compared to Kepler : increased number of instructions per cycle, bigger cache and 15% larger transistor density on the same 28nm node.

by: BiggieShadyI wouldn't judge their future big chip (GM200) based on small one (GM107).
Couple of things are interesting compared to Kepler : increased number of instructions per cycle, bigger cache and 15% larger transistor density on the same 28nm node.

GM107 will replace GK107 with a performance of GeForce GTX 480
You should find this particularly interesting. While GM107 utilizes 4 times less power than Fermi GF100, it will offer the same performance (actually even slightly better).